Amazon · TikTok Shop · Shopify · AI search

More profit.Not more ads.

An outcome-based agency for founder-led brands. We grow you across every channel and judge every decision by one number: the net profit you keep.

Book a free Profit Audit

Outcome-basedNo fixed fee for brands we back. We get paid when you do.

Senior team led by Robert Prime · Monthly rolling, no tie-in

Robert Prime, CEO and co-founder of Mr. Prime — **Robert Prime**CEO and co-founder

ROI: 4.0×; Return on £2.5m of client ad spend in the last 12 months.
Experience: 100+; Years of business leadership and 25+ exits across our leaders.
Profit: Net; The one number we're judged on. Not turnover, not ad spend.
Technology: In-house; Our own tools, One-Click and Impact Finder, run on client accounts every day.

Free listing teardown

Paste your Amazon link.See what's costing you sales.

Our One-Click engine rebuilds your main images and we record a video of what to change. Free, and yours to keep.

One-Click at work: a whole Echo Dot listing rebuilt from one link. 2 min 33 s.

01Your images, rebuiltYour main images redesigned from your own product photo. Yours to keep.
02A video teardownWhat's costing you clicks and sales, and what to change first.
03A call with the teamRobert and the team walk you through it, with your numbers.

Prefer the numbers first? Run the free Profit X-Ray on your advertising.

Platform partners

Recognised partners of Amazon and TikTok.

Five partner programmes across Amazon Ads, Amazon's Service Provider Network and TikTok Shop.

Trusted by brands including

Ann Summers
Future plc
Bare by Vogue
Fabuwellness
Tough Glove
Signature Packaging
Wood Finishes Direct
ProDog
EziDrops

**Robert Prime**Mr. Prime · CEO and co-founder

Our position

Turnover is vanity.Net profit is the business.

Most agencies are paid to grow sales and spend. A bigger ad bill can do both while your margin quietly disappears. We start at the other end of your P&L.

01
We start from your P&L
We map what each product really earns after fees, fulfilment and ads. Growth that loses money isn't growth.
02
Every pound of ad spend earns its keep
We manage to your break-even ACoS and TACoS. When an ad stops paying for itself, it stops.
03
We build value a buyer will pay for
25+ exits behind our leaders. We grow your brand the way a buyer will judge it.

Launching more products is not the way. What needs to be done is scaling the two hero products while controlling everything else and making them profitable. We need to be entrepreneurs first and look at the P&L.

Atouka TsochataridisGrowth Director, Mr. Prime · On a client strategy call, May 2026

Our tools, at work

Built in-house. Running on client accounts.

Two of the tools behind the Technology box above, filmed as they run.

One-ClickPaste an Amazon link, press build: nine images, an A+ page and three main images in 59 minutes. A real run, sped up.See One-Click

Profit X-RayMove your numbers and see, in pounds, whether your ads are under-investing, on plan or eating profit.Try the Profit X-Ray

The commerce flywheel

Each channel makes the next one cheaper to grow.

TikTok creates demand. Amazon converts it. Shopify keeps the customer. AI search makes you the answer. We run all four as one plan, against one P&L.

See how the flywheel works

One P&LNet profit

What we run

One team. Every channel. One P&L.

Leadership

Your account is in safe hands.

100+ years of business leadership and 25+ exits. We run your account the way we ran our own businesses: as owners.

Founder

Robert Prime

CEO and co-founder

Robert has spent more than two decades building, growing and selling online businesses, including an Amazon brand he built and sold for seven figures.

His other exits include Telematics.com, sold to LexisNexis, and Remortgage.com. He co-owned UpDownDesk.com.au, growing it on Shopify alone from £12k to £350k a month before he exited, one of more than six Shopify businesses he has built and sold.

He sets and reviews the strategy for every Mr. Prime client, with the view of an operator who has sat on your side of the table.

Loran Simon
Co-founder and Head of Finance
The unsung hero. Runs finance, staffing, training and outreach behind the scenes, so everyone else can do their job.
Atouka Tsochataridis
Growth Director
A former soldier who overdelivers every time. Runs growth across the client book and is on WhatsApp with clients at all hours.
Stephen Harrison (Steve)
Account Director
Fourteen years a police officer, then his own Amazon brands. Now runs more client accounts than anyone, meticulously.
Willow Goulding
Head of TikTok Shop
Our youngest hire and the busiest diary in the building. Runs TikTok Shop and our Creator Agency Partner programme.
Tsvetomira Vacheva (Mira)
Account Executive
The quiet strategist. Ten years building brands at leading consumer goods companies, then seven-figure brands on Amazon.

How far we go

A supplier failed our client. We didn't write a report. We got their money back.

Defective units from an overseas supplier: 40,000
Lost by the client over the previous year: $92,000
Won back: $47,000 in replacement stock and a $15,000 cash refund: $62,000

One of our clients was ready to stop selling its best-selling product for five months rather than keep dealing with an unreliable supplier on another continent. That would have cut its sales in half.

Atouka took the dispute on himself: late-night calls across time zones, weeks of negotiation, and a record of every defective unit. He made the case on the damage done, on how fast the client was growing, and on what the supplier stood to lose.

None of that was in our contract. It is what we mean by partnership.

“I dove in headfirst, late night calls across time zones, endless emails, and a deep dive into every single defective unit.”

Atouka TsochataridisGrowth Director, writing on LinkedIn, March 2025

Read Atouka's account on LinkedIn ↗Figures in US dollars, as in the original post. The client is not named.

The wall

In their words. In their numbers.

What founders and marketing leads have said about working with us, and results we have already published with their agreement. Every quote is verbatim.

“A genuine partnership rather than a one-size-fits-all approach.”
Working with Mr Prime has been a positive experience. Their team consistently provides fast, detailed responses and expert guidance whenever needed. They have played a key role in improving our advertising strategy and performance, while remaining flexible and adapting their approach to fit our business needs.
What stands out most is their willingness to tailor the way they work to our organisation, creating a genuine partnership rather than a one-size-fits-all approach. Their detailed reporting, strategic insights, and clear recommendations give us confidence in the direction of our Amazon business. We highly value their expertise, responsiveness, and collaborative approach.

Ann SummersThe Ann Summers team

“Rob is a true world class professional in his field - he is 100% focused on ROI and sales success … What I really love about working with this team is that they actually do what they say they're going to do.”

Emma BlakeDirector, Navigate The Noise

+68.8%

Revenue in month one, a new supplements client

Client account

“I could not recommend MrPrime enough. We have been using them for almost two years and increased our Amazon sales by over 80%.”

Simon WoodfineBusiness Development Manager, Birchall Tea

4×

Sales grown four times over at the same ACoS

Client account

“Sales after 6 months have more than doubled, year on year, and we are constantly working closely with them to ensure overall profitability is properly maximised (currently 25% up).”

RichardJoint Managing Director, Indigo

+389%

Monthly sales in a year, and two consecutive years of doubling

Client account

“MrPrime, was both a real breakthrough and a breath of fresh air. A highly competent Agency that is well organised, diligent, knowledgeable and efficient in their work.”

Bob GokaniFounder, EziDrops

TACoS, holding a 20% ACoS while sales grew

Client account

“Their knowledge & experience has been invaluable during the process, operating with a real ownership mindset.”

Jay Orlean-TaubSIPGOOD

−61%

Cost per sale

Freja Svendsen, case study

“MrPrime.com has been a valuable partner to us in getting us selling on Amazon. Sales have grown month on month as we have become more established. They are knowledgeable on all things Amazon, are proactive, accountable and are good people to work with.”

Chloe DixonOwner, House of Display

74k → 1.17m

Impressions, month 1 to month 4 of a new brand launch

House of Display, case study

“Without their support, we would have likely struggled to make this switch.”

Jenni FenlonGeneral Manager (Retail Division), National Beauty Distribution · Bare by Vogue

−43%

Advertising cost of sale within three months, in a highly competitive category

NotNiceThings, case study

“MrPrime has completely revamped our product pages, and online presence with great success!”

Angela CampbellSenior Account Manager, Craftis

“Over the past year, they have helped us achieve 3X growth in monthly sales - a phenomenal achievement. … We highly recommend Mr. Prime to any brand looking to maximize their potential on Amazon.”

Suzanne ActonMarketing Manager, Proceive

2.4×

Monthly sales in four months

Client account

“MrPrime has been really easy to work with and the time I’ve gained back to prioritize stock control and new products has been invaluable.”

Lewis SmithSales & Marketing Manager, Malton Plastics

90×

Return on GMV Max ad spend in Cyber Week 2025, on TikTok Shop

The Goodbye Company, case study

“The team have been great at identifying trends, learning the market we operate within and generating exposure/sales through effective marketing and other strategies. I would definitely recommend them.”

Michael MasonDirector, Not Nice Things

“MrPrime are very easy to deal with, good communicators and very transparent on how things work.”

Andy PottsMarketing Manager, Ultrimax Coatings

20% → 9%

Advertising cost of sale

Ultrimax, case study

“I would certainly recommend Rob to anyone looking to boost their Amazon presence.”

Touker Suleyman BrandsThe team of Dragons' Den investor Touker Suleyman

Every quote is as the client wrote it. Results are for the named client or account and period shown; every account is different. See our named client results.

Every account has a different profit unlock. Let's find yours.

Book a Profit Audit Get a free listing teardown

What we don't do

Four things you won't get from us.

Most agencies are built around a playbook, a contract and a ladder of juniors. We built Mr. Prime the other way round.

01
We don't Tie you into a long contract
Monthly rolling agreements with 30 days' notice. No 6- or 12-month lock-in. We earn the next month by what we did in the last one.
02
We don't Farm you out to juniors
You work directly with business leaders and our technology, not a junior account manager three steps removed from the decisions.
03
We don't Say “that's not in scope”
We say yes. If something stands between you and more profit, we find a way to fix it, whether that is a supplier dispute or a listing that won't convert.
04
We don't Measure ourselves on activity
We are judged on performance, not actions: the profit your account makes, not how many tasks we ticked off or reports we sent.

Hundreds of unbranded products arranged in a perfect grid, lit by a band of violet light

We do our best work with founder-led and family-owned brands selling £1m to £10m a year on Amazon, with hundreds of SKUs and a board that wants proof.

The Profit Audit

A senior review of your account against one number. Yours to keep either way.

One call with Robert Prime and the team. We go through your Amazon, TikTok Shop and Shopify numbers and show you the three changes most likely to add net profit in the next 90 days.

Profit by product after fees, fulfilment and advertising
Your advertising measured against your break-even, campaign by campaign
Your three highest-value moves, in order, with what each is worth
A written plan you keep, whether or not we work together

Book your Profit Audit Start with a free teardown

For brands selling £1m or more a year online. · +44 (0) 1273 092 551

Insights

Guides written by operators, checked against the source.

All insights

Amazon advertising What is ACoS? How to work out your break-even ACoS on Amazon ACoS, ROAS and TACoS each answer a different question. Here is how to work out your break-even ACoS on Amazon UK, with a worked example, and why profit after advertising is the number that matters. Robert Prime · 11 min read Fees & profit Amazon selling fees UK: every fee, and what a £20 sale really leaves you Every Amazon UK seller fee in one place: selling plans, referral fees by category with the 2026 low-price bands, the 2% digital services fee, closing fees, FBA, storage, refunds, ads and VAT, then a full P&L of one £20 sale. Fees checked 1 October 2026. Robert Prime · 12 min read Fees & profit Amazon FBA fees UK: fulfilment, storage, peak and low-price FBA explained Every Amazon FBA fee in the UK, with the current tables: fulfilment by size tier, low-price FBA, monthly and peak storage, the storage utilisation and aged inventory surcharges, inbound, removal, returns processing and the 2026 peak fee. Checked 1 October 2026. Robert Prime · 12 min read

Questions

What founders ask us first.

What is the free listing teardown?

Paste the link to one of your Amazon product pages and book a time. Before the call, our One-Click engine reads that public page and rebuilds your main images, and we record a short video of what we would change and why. On the call we walk you through it with your numbers. You keep the images and the video either way.

Why do you focus on net profit rather than sales?

Because sales can grow while profit falls. A bigger ad budget will almost always buy more revenue; the question is whether each extra pound of ads brings back more margin than it costs. We manage to that, product by product.

Which channels do you manage?

Amazon, TikTok Shop, Shopify and AI search. Most partners start with Amazon and add channels as the plan needs them, run by the same team against one set of numbers.

Will selling on Amazon upset my distributors?

It doesn't have to. We build Amazon-only bundles and product sets that don't appear in your wholesale catalogue, so Amazon adds sales rather than competing with your trade customers on the same product.

How do your fees work?

Every engagement is scoped to your channels, catalogue and goals after the free Profit Audit, and some brands qualify for commission-only. Agreements are monthly rolling, with no tie-in.

Is there a minimum contract?

No tie-in. Our agreements are monthly rolling with 30 days' notice.

More profit.Not more ads.

Paste your Amazon link.See what's costing you sales.

Recognised partners of Amazon and TikTok.

Turnover is vanity.Net profit is the business.

We start from your P&L

Every pound of ad spend earns its keep

We build value a buyer will pay for

Each channel makes the next one cheaper to grow.

Robert Prime

Loran Simon

Atouka Tsochataridis

Stephen Harrison (Steve)

Willow Goulding

Tsvetomira Vacheva (Mira)

We don't Tie you into a long contract

We don't Farm you out to juniors

We don't Say “that's not in scope”

We don't Measure ourselves on activity

A senior review of your account against one number. Yours to keep either way.

Guides written by operators, checked against the source.

What founders ask us first.